Log in

Relevant bibliographies by topics / Thermal interdiffusion / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Thermal interdiffusion.

Dissertations / Theses on the topic 'Thermal interdiffusion'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 16 dissertations / theses for your research on the topic 'Thermal interdiffusion.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Yu, Xiaoxiao. "High Throughput Assessment of Multicomponent Alloy Materials." Research Showcase @ CMU, 2018. http://repository.cmu.edu/dissertations/1150.

Full text

Abstract:

Multicomponent metal alloys play an essential role in many technologies and their properties must be optimized by rational selection of the alloy’s components and its fractional composition of each. High-throughput materials synthesis allows us to prepare Composition Spread Alloy Films (CSAFs), sample libraries that contains all possible compositions of a binary or ternary alloy. In our lab, a Rotatable Shadow Mask (RSM) – CSAF deposition tool has been developed for the creation of CSAFs. Such CSAFs can be prepared with composition gradients and/or thickness gradients in arbitrarily controlled

APA, Harvard, Vancouver, ISO, and other styles

2

Täck, Ulrike. "The Influence of Cobalt and Rhenium on the Behaviour of MCrAlY Coatings." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola&quot, 2009. http://nbn-resolving.de/urn:nbn:de:swb:105-3210357.

Full text

Abstract:

Superalloys are widely applied as materials for components in the hot section of gas turbines. As superalloys have a limited oxidation life, the application of a coating is vital. The most commonly applied coatings in stationary gas turbines are MCrAlY coatings. Since the turbine components are exposed to high cyclic thermal stresses, MCrAlY coatings must also show a high thermal fatigue resistance. In this thesis, the effect of Cobalt and Rhenium on microstructure, oxidation and thermal fatigue of NiCoCrAlY coatings is presented. Additionally the condition of the coatings after testing in an

APA, Harvard, Vancouver, ISO, and other styles

3

Cavaletti, Eric. "Etude et développement de barrière de diffusion pour les sous-couches de système barrière thermique." Thesis, Toulouse, INPT, 2009. http://www.theses.fr/2009INPT037G/document.

Full text

Abstract:

A haute température, l’interdiffusion entre un superalliage et son revêtement protecteur (ß-NiAl ou ß- NiPtAl) dégrade à la fois la protection contre l’oxydation, par modification de la composition chimique du revêtement, et la microstructure du superalliage (3ième et 4ième générations) par formation de Zones de Réaction Secondaires (SRZ). Le but de cette étude a donc été (1) de développer des barrières de diffusion (BD) constituées d’une dense précipitation de phases a-W après traitement sous vide (BD simple) ou chromisation en phase vapeur (BD enrichie en chrome) (2) de mettre au point une m

APA, Harvard, Vancouver, ISO, and other styles

4

Saidi, Bilel. "Metal gate work function modulation mechanisms for 20-14 nm CMOS low thermal budget integration." Toulouse 3, 2014. http://www.theses.fr/2014TOU30300.

Full text

Abstract:

Afin de poursuivre la miniaturisation des dispositifs CMOS, l'empilement HfO2/Métal a remplacé l'empilement SiO2/polySi. Cependant, la diffusion incontrôlée des espèces chimiques dans ces nouveaux empilements fabriqués avec un fort budget thermique compromet l'obtention des travaux de sortie (EWF) et des épaisseurs d'oxyde équivalent (EOT) définis par l'ITRS. Une solution consiste à utiliser une intégration à plus bas budget thermique. Avec cette nouvelle approche, l'objectif de ce travail de thèse était de comprendre les paramètres physiques permettant d'obtenir une EOT<1nm et des EWF perm

APA, Harvard, Vancouver, ISO, and other styles

5

Tardot, Alain. "Diffraction de rayons X et interdiffusion dans les superréseaux CdTe/CdZnTe et CdTe/HgTe." Grenoble 1, 1993. http://www.theses.fr/1993GRE10090.

Full text

Abstract:

Ce travail concerne la caracterisation structurale et l'etude de l'interdiffusion dans les superreseaux contraints cdte/cdznte et cdte/hgte, elabores par epitaxie par jets moleculaires, au moyen de la double diffraction de rayons x. Les parametres structuraux (composition, epaisseur, etat de deformation) sont obtenus de facon precise en utilisant conjointement l'experience et la simulation en theorie cinematique. Les coefficients d'interdiffusion des couples cd/zn (400c) et cd/hg (200c) sont mesures par diffraction x. Ils permettent de calculer les profils de concentration des superreseaux en

APA, Harvard, Vancouver, ISO, and other styles

6

Audigié, Pauline. "Modélisation de l'interdiffusion et du comportement en oxydation cyclique de superalliages monocristallins à base de nickel revêtus d'une sous-couche γ-γ’ riche en platine. Extension aux systèmes barrière thermique". Phd thesis, Toulouse, INPT, 2015. http://oatao.univ-toulouse.fr/14280/1/Audigie.pdf.

Full text

Abstract:

Les systèmes barrière thermique actuels connaissent une importante dispersion de durées de vie liée principalement aux ondulations de surface du revêtement métallique β-(Ni,Pt)Al provoquant l’écaillage du dépôt céramique. Les revêtements γ-γ’ riches en platine sont étudiés en tant qu’alternative au système actuel. Ce travail de thèse s’est intéressé à l’élaboration des revêtements γ-γ’ riches en platine sur un superalliage à base de nickel, l’AM1 à partir de procédés conventionnels : dépôt électrolytique de platine et aluminisation courte. Les mécanismes de dégradation par oxydation cyclique à

APA, Harvard, Vancouver, ISO, and other styles

7

Kaur, Manpreet. "Dual Spin-Cast Thermally Interdiffused Polymeric Photovoltaic Devices." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77159.

Full text

Abstract:

An in depth study of the performance of thermally interdiffused concentration gradient polymer photovoltaic devices is carried out with particular attention to the effect of the thickness and the thermal treatments on the power conversion efficiency, short circuit current, open circuit voltage and other key electrical properties. Bilayer films of sequentially spin-cast donor and acceptor materials are exposed to various heat treatments in order to induce the interdiffusion. The depth profiles show concentration gradients in the donor and acceptor as a result of interdiffusion and these devices

APA, Harvard, Vancouver, ISO, and other styles

8

Drees, Martin. "Polymer/Fullerene Photovoltaic Devices - Nanoscale Control of the Interface by Thermally-controlled Interdiffusion." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/27823.

Full text

Abstract:

In this thesis, the interface between the electron donor polymer and the electron acceptor fullerene in organic photovoltaic devices is studied. Starting from a bilayer system of donor and acceptor materials, the proximity of polymer and fullerene throughout the bulk of the devices is improved by inducing an interdiffusion of the two materials by heating the devices in the vicinity of the glass transition temperature of the polymer. In this manner, a concentration gradient of polymer and fullerene throughout the bulk is created. The proximity of a fullerene within 10 nm of any photoexcitation

APA, Harvard, Vancouver, ISO, and other styles

9

Gopal, Anamika. "Effects of Thickness, Morphology and Molecular Structure of Donor and Acceptor Layers in Thermally Interdiffused Polymer Photovoltaics." Diss., Virginia Tech, 2007. http://hdl.handle.net/10919/27279.

Full text

Abstract:

An in-depth study of concentration gradients in thermally-interdiffused polymer – fullerene photovoltaic devices, with a focus on thickness and heat treatments, is presented in this thesis. Device performance is improved from the bilayer by the creation of a concentration gradient of the donor and acceptor materials throughout the active layer of the device. Concentration gradients are expected to improve device performance by optimizing the charge transfer, transport and collection processes. This is achieved through heat-induced interdiffusion of the two materials at temperatures above the g

APA, Harvard, Vancouver, ISO, and other styles

10

Grummel, Brian. "Design and Characterization of High Temperature Packaging for Wide-Bandgap Semiconductor Devices." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5231.

Full text

Abstract:

Advances in wide-bandgap semiconductor devices have increased the allowable operating temperature of power electronic systems. High-temperature devices can benefit applications such as renewable energy, electric vehicles, and space-based power electronics that currently require bulky cooling systems for silicon power devices. Cooling systems can typically be reduced in size or removed by adopting wide-bandgap semiconductor devices, such as silicon carbide. However, to do this, semiconductor device packaging with high reliability at high temperatures is necessary. Transient liquid phase (TLP) d

APA, Harvard, Vancouver, ISO, and other styles

11

Moroni, Didier. "Etude des proprietes optiques de semi-conducteurs composes iii-v et de puits quantiques par photoluminescence et excitation de la photoluminescence." Paris 6, 1987. http://www.theses.fr/1987PA066540.

Full text

Abstract:

Identification des types de recombinaison entre 2 et 300k dans les couches epaisses de gainas et gainp epitaxiees sur leur support respectif inp et gaas. Etude de l'origine de la luminescence et variation en fonction de l'epaisseur du taux de capture des porteurs de la barriere dans les puits quantiques ingaas/inp. Determination du coefficient d'interdiffusion de al et ga aux interfaces dans les puits quantiques gaas/gaalas

APA, Harvard, Vancouver, ISO, and other styles

12

Kuffner, Peter. "Quantum Dot Interdiffusion For Two Colour Quantum Dot Infrared Photodetectors." Thesis, 2006. http://hdl.handle.net/1885/44488.

Full text

Abstract:

An investigation into the effects of thermal interdiffusion on the characteristics of quantum dot infrared photodetectors (QDIPs) yields results useful for the creation of a two-colour QDIP. For high temperature rapid thermal annealing, quantum dot interdiffusion is induced, resulting in a large wavelength redshift in the photodetector spectral response, at the cost of a small degradation in device performance. The evaluation of a two-colour QDIP fabricated using selective suppression of interdiffusion during thermal annealing shows uniform performance in the two different detector pixels. Thi

APA, Harvard, Vancouver, ISO, and other styles

13

W, Huang C., and 黃智偉. "Effects of Thermal Processes on the Interdiffusion and Reactions for the Al/TiN/Ti/Si System." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/03456600586629768253.

Full text

Abstract:

碩士<br>國立臺灣科技大學<br>化學工程研究所<br>84<br>At present the primary material for the metalization of the ULSI(ultra-large scale integration) is aluminum. The goal of achieving high reliability and yield for ULSI fabrication can only be realized with the advanced annealing technology. We applied two different annealing processes on our multi-layer system in which Al films were sputtering deposited and TiN films were deposited with the reactive sputtering. The effects of the annealing process on the Ti

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Xiang-Ling, and 王翔翎. "Study of competition mechanism between ripening and interdiffusion in ZnTe/ZnMgSe quantum dots by rapid thermal annealing." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/33gs82.

Full text

Abstract:

碩士<br>國立交通大學<br>電子物理系所<br>105<br>ZnTe quantum dots were grown by Stranski-Krastnov mode on ZnMgSe of different Mg composition by Molecular Beam Epitaxy. The coverage thickness of quantum dots were 4.0, 5.0, 6.0, and 7.0 MLs. ZnTe quantum dots grown on ZnSe was investigated for reference. The physical characteristics were studied by rapid thermal annealing (RTA), photoluminescence (PL) spectroscopy, temperature dependent PL, and time resolved PL (TRPL). 　　Different coverage of ZnTe quantum dots were annealed at temperature from 350°C to 550°C for 30 seconds by RTA. Two mechanisms, ripening and

APA, Harvard, Vancouver, ISO, and other styles

15

Täck, Ulrike. "The Influence of Cobalt and Rhenium on the Behaviour of MCrAlY Coatings." Doctoral thesis, 2003. https://tubaf.qucosa.de/id/qucosa%3A22488.

Full text

Abstract:

Superalloys are widely applied as materials for components in the hot section of gas turbines. As superalloys have a limited oxidation life, the application of a coating is vital. The most commonly applied coatings in stationary gas turbines are MCrAlY coatings. Since the turbine components are exposed to high cyclic thermal stresses, MCrAlY coatings must also show a high thermal fatigue resistance. In this thesis, the effect of Cobalt and Rhenium on microstructure, oxidation and thermal fatigue of NiCoCrAlY coatings is presented. Additionally the condition of the coatings after testing in an

APA, Harvard, Vancouver, ISO, and other styles

16

Sheen, J. G., and 沈建國. "A Study of Thermally Stable In-Au Microjoints Prepared by Solid- Liquid Interdiffusion Bonding." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/68652591054165627169.

Full text

Abstract:

碩士<br>國立中興大學<br>材料工程學研究所<br>86<br>Indium and its alloys exhibit good service life and reliability, and are well suited for applications such as solder interconnections in electronic packaging. In this study, two types of Au-In microjoints, i.e. Au/In/Au in which In foil was used and Au/In, were prepared by either solid state interdiffusion (SSID) or solid-liquid interdiffusion (SLID) bondings for a single lap tensile test. Deposition of the Au and In thin films was carried out by thermal

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!